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作 者:黄振钟[1] 霍毅[1] 罗秋燕[2] 刘卓[1] 盛寿日[1]
机构地区:[1]江西师范大学化学化工学院,南昌330027 [2]井冈山师范学院化学系
出 处:《应用化学》2007年第8期917-920,共4页Chinese Journal of Applied Chemistry
基 金:国家自然科学基金(20664001);国家"八六三"计划(2002AA333120);江西省自然科学基金(0520028)资助项目
摘 要:以DMF作溶剂,在四丁基氟化铵(TBAF)存在下,对甲基苯基三甲硅基醚(1)和4,4′-二氯二苯砜(2)于100℃反应1h,合成了4,4′-二(4-甲基苯氧基)二苯砜(3),产率为92%;加入催化量的N-溴代丁二酰亚胺(NBS)并在光照条件下,与氧气反应得到中间体-4,4′-二(4-羧基苯氧基)二苯砜(4),其产率达90%;将化合物4与二氯亚砜反应合成目标产物4,4′-二(4-氯甲酰基苯氧基)二苯砜(5),总收率为74.5%(以对甲基苯基三甲硅基醚为基准计算)。The reaction of p-methylphenyltrimethylsilyl ether ( 1 ) with 4,4'-dichlorodiphenylsulfone (2) in DMF and in the presence of tetrabutylammonium fluoride ( TBAF ) at 100 ℃ for 1 h afforded 4,4'-bis ( 4- methylphenoxy) diphenyl sulfone(3) in a yield of 92%. Then compopund 3 was oxidized in air to the corre- sponding intermediate 4,4'-bis(4-carboxyphenoxy) diphenyl sulfone(4) in a yield of 90% in the presence of a catalytic amount of N-bromosuccinimde(NBS) under photoirradiation. Subsequently the reaction of compound 4 with thionyl chloride yielded target compound 4,4'-bis (4-chloroformylphenoxy) diphenylsulfone (5) in a overall yield of about 74. 5 % ( based on compound 1 ). The present method has the advantages of readily availability of starting materials, mild reaction conditions, convenient manipulation and good yields.
关 键 词:对甲基苯基三甲硅基醚 二氯二苯砜 二(氯甲酰基苯氧基)二苯砜 合成
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